X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsigaction.m4;h=8f0d450ccbca6b3cc40e2f359a199ae7fca811a3;hb=5510d3df6c49b73ed41fd3243c276f96a3c3f9d4;hp=f11d4cf0f17c77d7aad359c129895762199829f2;hpb=a3f953e86848ed858ed655bba12a7fbbab57f1c5;p=gnulib.git

diff --git a/m4/sigaction.m4 b/m4/sigaction.m4
index f11d4cf0f..8f0d450cc 100644
--- a/m4/sigaction.m4
+++ b/m4/sigaction.m4
@@ -1,5 +1,5 @@
-# sigaction.m4 serial 4
-dnl Copyright (C) 2008 Free Software Foundation, Inc.
+# sigaction.m4 serial 5
+dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -8,10 +8,16 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_SIGACTION],
 [
   AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
-  AC_REPLACE_FUNCS([sigaction])
-  if test $ac_cv_func_sigaction = no ; then
+  AC_CHECK_FUNCS_ONCE([sigaction])
+  if test $ac_cv_func_sigaction = yes; then
+    AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , ,
+                     [[#include <signal.h>]])
+    if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
+      HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
+    fi
+  else
     HAVE_SIGACTION=0
-    AC_SUBST([HAVE_SIGACTION])
+    AC_LIBOBJ([sigaction])
     gl_PREREQ_SIGACTION
   fi
 ])
@@ -29,7 +35,6 @@ AC_DEFUN([gl_PREREQ_SIGACTION],
   ]])
   if test $ac_cv_type_siginfo_t = no; then
     HAVE_SIGINFO_T=0
-    AC_SUBST([HAVE_SIGINFO_T])
   fi
 ])
 
@@ -37,10 +42,4 @@ AC_DEFUN([gl_PREREQ_SIGACTION],
 AC_DEFUN([gl_PREREQ_SIG_HANDLER_H],
 [
   AC_REQUIRE([AC_C_INLINE])
-  AC_CHECK_MEMBERS([struct sigaction.sa_sigaction], , ,
-                   [[#include <signal.h>]])
-  if test $ac_cv_member_struct_sigaction_sa_sigaction = no; then
-    HAVE_STRUCT_SIGACTION_SA_SIGACTION=0
-    AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION])
-  fi
 ])